Nuomm NEWSCASTER VT2 - Figure 4: RF Head Block Diagram

NewsCaster VT2 Features
M17-0002-01A Rev 0.0 17 User Manual
RF Head Features:
The rugged NewsCaster VT2 RF Head, as
shown in Figure 4, includes:
• IF to RF Up-Converter.
• RF Power Amplifier.
• Low Noise Frequency Synthesizer.
• Diplexer that splits the +48 volts, the
70 MHz and the Control Data.
• DC to DC Converter.
• Optional Pan & Tilt Controller.
• Optional Omni/Directional Antenna
switch.
• Optional Four Form C Relay contacts
controlled from the Control Unit.
The RF Head components are housed in a
weatherproof enclosure that mounts on the
antenna pan and tilt housing, replacing the
conventional power amplifier. This setup
combines precise tuning of the transmitter
frequency with exceptional output power. The
RF unit is equipped with type “N” connectors
for the directional and optional omni-
directional antenna(s).
Other Standard Features:
• Digitally synthesized microwave oscillator
tuning.
• RS232/RS485 Remote.
• RF Power Output Adjustments.
• Field Programmable RF and ASC settings.
Other Options:
• Remote Control Software allowing the
NewsCaster VT2 to be fully monitored and
controlled from an IBM Compatible PC
through a RS232C/RS485 port.
• Mounting Adapter Plates enabling
mounting of the RF Head to the Pan and
Tilt.
LPF
Amplifier
Module
Detector Module
901-I058-02
IF to RF
Up-Converter
Diplexer
DC to DC
Power Supply
Microprocessor
70 MHz
48 V Control Data
ALC
RF Output
Input from
Control Unit
Newscaster VT2 RF Head
Pan & Tilt
Controller
(Optional)
To Pan & Tilt
To Directional
Antenna
To Omni
Antenna
Four Form C
Relays
(Optional)
4 Relay
Closures
(Optional)
Figure 4: RF Head Block Diagram